Cultivator.



N0 MODEL.

PATENTED SEPT. 8, 1903.

I. A; WEAVER.

GULTIV'ATOR.

APPLIOATION FILED MAY 1.1, 1903.

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BY/ gdm/M zfwrww No. 738,265. PATBNTED SEPT. 8, 1903. I. A. WEAVER.GULTIVATOR.

APPLICATION PILEDJLKY 11, 1903. N0 MODEL.

2 SHEHTQr-SHEET 2L.

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UNITED STATES Patented September 8, 1903 PATENT OEEIcE.

IRA Al WEAVER, OF SPRINGFIELD, ILLINOIS, ASSIGNOR TO SATTLEY MANU-FACTURING COMPANY, OF SPRINGFIELD, ILLINOIS, A CORPORATION OF ILLINOIS.

CU LTIVATOR.

SPECIFICATION forming part of Letters Patent No. 738,265, datedSeptember 8, 1903. Application filed May 11, 1903. Serial No. 156,688.(Nomodelh To aZZ whom it may concern.-

Be it known that I, IRA A. WEAVER, a citizen of the United States,residing at Springfield, Sangamon county, State of Illinois, haveinvented certain new and useful Improvements in Cultivators, of whichthe following is a specification containing a full, clear, and exactdescription, reference being bad to the accompanying drawings, forming apart hereof.

My invention relates to improvements in cultivators; and it consists ofthe novel construction, combination, and arrangement of partshereinafter shown, described, and claimed.

The object of my invention is to provide an improved coupling by meansof which the beams may be quickly and easily attached to the frame ofthe cultivator.

A further object is to provide improved means for taking up all of thelost motion in the coupling.

A further object is to provide improved means for raising and loweringthe beams and at the same time permit the beams to have an easy lateralmotion.

In the drawings, Figure 1 is a side elevation of a portion of astraddle-row cultivator having my invention applied thereto. Fig. 2 is adetail View in perspective of the adjustable coupling. Fig. 3 is adetail view in perspective of a key made use of in securing thepivot-head to the arch-sleeve. Fig. 4 is a detail view in perspective ofthe adjustable bar and its clamp for the upper journal of the beam-head,inverted for the purpose of better illustration. Fig. 5 is a sectionaldetail view of the lower pivot-head journal and its bearing in thebeam-head on line 5 5 of Fig. 2.

1 indicates the usual supporting-wheels, which have been broken away atconvenient points to illustrate more important parts.

2 indicates the cultivator-beams, upon the front end of which aresecured, by means of bolts 3, beam-heads 4, which have verticallyalinedbearings 5 and 6, separated a distance. The upper bearing 5 preferablyhas a conical bore to fit the conical upper pivot 7 of the pivot-head 8.Said upper bearing 5 is both adj ustably and detachabl y mounted betweenthe split jaws 9 and 10 of the beam-head, and said bearing is clampedbetween said jaws by means of a bolt 11. The upper end of said bearing 5projects a distance and is provided with an angular portion 12 for thereception of a wrench. The under surfaces of the jaws 9 and 10 areprovided with spiral projections 13, which are engaged by integral lugs14, projecting laterally from the lower end of said bearing 5 for apurpose hereinafter mentioned. The lower pivot 15 of the pivot-head 8 isconical and fits within its con ical lower bearing 6. It will thus beseen that the beam-heads are pivotally and adjustably connected to theirrespective pivotheads 8. I have shown only one of each part,

except the cultivator-shovels and beams, as

I have deemed it unnecessary to duplicate the beam-heads, pivot-heads,and their operating connections.

The pivothead 8 is adjustably secured upon the arch-sleeve 16 by meansof a tapered key or wedge 17, mounted in the keyseat 18 and secured bythe nut 19, threaded upon the lower end of said key. Said archsleeve isjournaled on the horizontal lower end 20 of the arch 21, which latter issecured to the frame 22 of the cultivator in the usual manner.

Myimproved means for raising and lowering the beams consists of alifting-arm 23, having its forward end pivotally connected to aperforated ear 24, projecting from the side of the beam-head 4 adjacentthe upper end of the latter. Said lifting-arm extends rearwardly and islocated a short distance above its beam 2. It is provided with anangular brace 25, the upper end of which is secured at 26 to the saidlifting-arm, and the lower end of which brace is pivotally connected toa perforated ear 27, projecting from the lower portion of the beam-head4. However, I do not desire to limit myself to the construction justdescribed, as itis evident that the said arm and its brace may be formedintegral, or some other equivalent construction may be provided.

Raising and lowering the beams 2 is accomplished by means of ahand-lever 28, fulcrumed at 29 to the frame and provided with the usualtoothed sector 30 for locking said lever in the desired position. Avertical rod 31 is pivotally connected to the rear end of thelifting-arm 23, and the upper end of said rod 31 is pivotally connectedto the hand-lever 28. The connection between the handlever 28 and rod 31is preferably yielding by means of a spring 32 and a sliding connectionbetween said spring and the hand-lever.

The above-described construction may of course be duplicated in order toprovide a cultivator of any capacity.

The operation is as follows: When it is desired to raise and lower thebeams 2, the hand-lever 28 is manipulated, and said beams may be raisedand lowered and at the same time be permitted to have an easy lateralmotion on their pivot-heads 8. When it is desired to take up the lostmotion between the bearings 5 and 6 of the beam-head and their pivots,all that is necessary is to loosen the bolt 11, thereby releasing theadjustable bearing 5, and then the same should be given a slight axialmovement by means of a'wrench applied to the angular portion 12, whichwill cause the lugs 14 to engage the spiral projections 13 on the underside of the jaws 9 and 10, and said spiral projections will force thesaid bearing 5 downwardly a corresponding distance, thereby bringing itinto closer contact with its pivot.

The construction above described possesses a number of readily-apparentadvantages in point of convenience and durability.

I claim 1. In a cultivator, the combination with the supporting-arch andthe frame, of a pivothead journaled upon said arch and having 1 upperand lower pivots, a beam, a'beam-head mounted upon the pivots of saidpivot-head, and an adjustable bearing mounted to rock axially upon saidpivot-head for taking up the lost motion between said pivot-head andsaid beam-head, substantially as described.

2. Ina cultivator, the combination with the supporting-arch and theframe, of a pivothead journaled upon said arch and having upper andlower pivots, a beam, a beam-head mounted upon the pivots of saidpivot-head, an adjustable bearing mounted to 'rock axially upon saidpivot-head for taking up the lost motion between said pivot-head andsaid beam-head, and means for locking said adjustable bearing after thelost motion has been taken up, substantially as described.

3. In acultivator, the combination with the supporting-arch and theframe, of a pivothead journaled upon said arch and having upper andlower pivots, a beam, a beam-head mounted upon the pivots of saidpivot-head, an adjustable bearing for taking up the lost motion betweensaid pivot head and said beam-head, and clamping-jaws for securing thesaid adjustable bearing after the lost mo tion has been taken up,substantially as described.

4. In a cultivator, the combination with the supporting-arch and theframe, of a pivothead journaled upon said arch and having upper andlower pivots, a beam,-a beam-head mounted upon the pivots of saidpivot-head, an adjustable bearing for taking up the 10st motion betweensaid pivot head and said beam-head, said bearing having an angularprojection for the reception of awrench, and a clamp for locking saidbearing after the same has been adjusted, substantially as described.

5. In a cultivator, the combination with the supporting-arch and theframe, of a pivothead journaled upon said arch and having upper andlower conical pivots, a beam, a beam-head mounted upon the conicalpivots of saidpivot-head, an adjustable conical bearing for taking upthe lost motion between said pivot-head and said beam-head, said bearinghaving an angular projection for the reception of a wrench, and a clampfor locking said bearing after the same has been adjusted, substantiallyas described.

6. In acultivator, the combination with the supporting-arch and theframe, of a pivothead journaled upon said arch and having upper andlower pivots, abeam, a beam-head mounted upon the pivots of saidpivot-head, an adjustable bearing for taking up the lost motion betweensaid pivot head and said beam-head, a lifting-arm pivotally connected tosaid beam-head and extending rearwardly therefrom, a hand-lever, and aconnection between said hand-lever and said lifting-arm, substantiallyas described.

7. In acultivator, the combination with the supporting-arch and theframe, of a pivothead journaled upon said arch and having upper andlower pivots, a beam, a beam-head mounted upon the pivots of saidpivot-head, an adjustable bearing for taking up the lost motion betweensaid pivot head and said beam-head, clamping-jaws between which saidadjustable bearing is mounted, a lateral projection on said bearing, andspiral pro-- jections on said jaws with which said projection upon saidbearing is adapted to cont-act, substantially as described.

In testimony whereof I have signed my name to this specification inpresence of two subscribing witnesses.

IRA A. WEAVER.

